• Bronstein JL. 1994. Conditional outcomes in mutualistic interactions. Trends in Ecology and Evolution 9: 214217.
  • Bronstein JL. 2001. The exploitation of mutualisms. Ecology Letters 4: 277287.
  • Danielson RM. 1984. Ectomycorrhiza formation by the operculate discomycete Sphaerosporella brunnea (Pezizales). Mycologia 76: 454461.
  • Egger KN. 1986. Substrate hydrolysis patterns of post-fire Ascomycetes (Pezizales). Mycologia 78: 771780.
  • Egger KN, Hibbett DS. 2004. The evolutionary implications of exploitation in mycorrhizas. Canadian Journal of Botany 82: 11101121.
  • Hibbett DS, Gilbert LB, Donoghue MJ. 2000. Evolutionary instability of cctomycorrhizal symbioses in basidiomycetes. Nature 407: 506508.
  • Hutchison LJ. 1991. Description and identification of cultures of ectomycorrhizal fungi found in North America. Mycotaxon 42: 387504.
  • Johnson NC, Graham JH, Smith FA. 1997. Functioning of mycorrhizal associations along the mutualism-parasitism continuum. New Phytologist 135: 575586.
  • Jumpponen A. 2001. Dark septate endophytes – are they mycorrhizal? Mycorrhiza 11: 207211.
  • Law R. 1985. Evolution in a mutualistic environment. In: DHBoucher, ed. The biology of mutualism. London, UK: Croom-Helm, 145170.
  • Mandyam K, Jumpponen A. 2005. Seeking the elusive function of the root-colonising dark septate endophytic fungi. Studies in Mycology 53: 173189.
  • Read DJ, Leake JR, Perez-Moreno J. 2004. Mycorrhizal fungi as drivers of ecosystem processes in heathland and boreal forest biomes. Canadian Journal of Botany 82: 12431263.
  • Schulz B, Boyle C. 2005. The endophytic continuum. Mycological Research 109: 661686.
  • Summerbell RC. 2005. From Lamarckian fertilizers to fungal castles: recapturing the pre-1985 literature on endophytic and saprotrophic fungi associated with ectomycorrhizal root systems. Studies in Mycology 53: 191256.
  • Tedersoo L, Hansen K, Perry BA, Kjøller R. 2006. Molecular and morphological diversity of pezizalean ectomycorrhiza. New Phytologist 170: 000000 (this issue).
  • Villarreal-Ruiz L, Anderson IC, Alexander IJ. 2004. Interaction between an isolate from the Hymenoscyphus ericae aggregate and roots of Pinus and Vaccinium. New Phytologist 164: 183192.
  • Vrålstad T. 2004. Are ericoid and ectomycorrhizal fungi part of a common guild? New Phytologist 164: 710.
  • Vrålstad T, Fossheim T, Schumacher T. 2000. Piceirhiza bicolorata – the ectomycorrhizal expression of the Hymenoscyphus ericae Aggregate? New Phytologist 145: 549563.
  • Vrålstad T, Holst-Jensen A, Schumacher T. 1998. The postfire discomycete Geopyxis carbonaria (Ascomycota) is a biotrophic root associate with Norway spruce (Picea abies) in nature. Molecular Ecology 7: 609616.
  • Vrålstad T, Myhre E, Schumacher T. 2002. Molecular diversity and phylogenetic affinities of symbiotic root-associated ascomycetes of the Helotiales in burnt and metal polluted habitats. New Phytologist 155: 131148.
  • Yang CS, Wilcox HE. 1984. An E-Strain ectendomycorrhiza formed by a new species, Tricharina mikolae. Mycologia 76: 675684.